One of SoftBank’s most interesting new devices is ZTE’s 005Z, a 46.6×76.6×16.3mm crime prevention buzzer (a kid under attack pulls the pulling thing and a loud buzzer goes off, scaring off the attacker and alertin[...]

Recently introduced from overseas, Japanese parks now start broadcast mosquito high-pitched noise that can only heard by people below 25 years old and annoying enough to make them runaway and not disturb the neighborhood at night. Now [...]